Engine control unit



FIG. 1 is a perspective view of an engine control unit depicting our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom end view thereof.

The broken lines are included to show portions of the engine control unit that form no part of the claimed design. 

CLAIM The ornamental design for an engine control unit, as shown and described. 